Tracklist Hide Credits
| A | Should've Known BetterProducer – Humberto GaticaRemix – David Cole Written-By – Richard Marx |
3:38 |
| B | Rhythm Of LifeProducer – David Cole , Richard MarxWritten-By – M. Omartian*, R. Marx* |
4:25 |
Credits
- Design – Koppel & Scher, Lu Ann Graffeo
- Management – Allen Kovac, Steve Drimmer*
- Photography By – Victoria Pearson
Other versions
| Category | Artist | Title (Format) | Label | Category | Country | Year |
|---|---|---|---|---|---|---|
| B-50083 | Richard Marx | Should've Known Better (7", Single) | Manhattan Records | B-50083 | US | 1987 |
| MT 32 | Richard Marx | Should've Known Better (7", Single) | EMI-Manhattan Records | MT 32 | UK | 1988 |
| 20 2372 2, CDMT 32 | Richard Marx | Should've Known Better (CD, Maxi) | EMI-Manhattan Records, EMI-Manhattan Records | 20 2372 2, CDMT 32 | UK | 1988 |
| B-50083 | Richard Marx | Should've Known Better (7", Single) | EMI-Manhattan Records | B-50083 | Canada | 1987 |
| 060 20 2141 6, 1C K 060 20 2141 6, 20 2141 6 | Richard Marx | Should've Known Better (12", Maxi) | Manhattan Records, Manhattan Records, Manhattan Records | 060 20 2141 6, 1C K 060 20 2141 6, 20 2141 6 | Europe | 1987 |
